RHS 80x25x3 is a cold-formed welded rectangular hollow section reference for steel detailing and design review. This page presents the published geometry, corner radii, sectional area, unit weight, and the related European standard reference in one place.
Use the dimensional data below when checking drawings, comparing rectangular hollow sections, or preparing fabrication documentation. For design work, confirm the applicable material grade, loading, connection details, fabrication requirements, and code checks with the project engineer.
RHS 80x25x3
Cold Formed Welded Rectangular Steel Tubes
refer to : EN 10219-2
the European standard that specifies tolerances, dimensions, and sectional properties for cold-formed welded structural hollow sections made of non-alloy and fine grain steels. It complements EN 10219-1, which covers technical delivery conditions.
Dimension : 80x25x3
Depth : 80 mm
Width : 25 mm
Thickness : 3 mm
Outer Corner Radius : 6 mm
Inner Corner Radius : 3 mm
Sectional Area : 5.71 cm2
Unit Weight : 4.5 kg/m
How to read the RHS 80x25x3 data
The designation RHS 80x25x3 identifies a rectangular hollow section by its listed depth, width, and wall thickness. Here, the depth is given as 80 mm, the width as 25 mm, and the thickness as 3 mm. The section is therefore an enclosed steel profile rather than an open angle, channel, or I-section.
The outer and inner corner radii describe the transitions between the flat faces of the tube. These radii matter when checking clearances, preparing connection details, and comparing the nominal profile with fabrication or CAD geometry.
Section properties and practical use
The listed sectional area is 5.71 cm2, while the unit weight is 4.5 kg/m. These values are useful for quantity estimates, schedule preparation, and reviewing section-property data supplied for preliminary engineering checks. They should not be treated as a complete design verification: resistance, stability, connection behavior, and serviceability depend on the project conditions and applicable design rules.
Standard and CAD reference
The page refers to EN 10219-2 for dimensional, tolerance, and sectional-property information for cold-formed welded structural hollow sections. The related delivery-condition requirements are identified in the source content through EN 10219-1. Link this reference with your site’s related pages on structural hollow sections, steel section properties, steel tolerances, and connection detailing to help readers move from profile selection to documentation.
A DWG resource is provided with the reference. Before using the file in production drawings, check its units, layer organization, corner geometry, and compatibility with the project’s drafting standards.
RHS 80x25x3 frequently asked questions
What does RHS 80x25x3 mean?
It is the designation for a rectangular hollow section with the listed depth, width, and wall thickness of 80 mm, 25 mm, and 3 mm respectively.
What are the corner radii for this RHS?
The listed outer corner radius is 6 mm and the listed inner corner radius is 3 mm. Use these values when reviewing profile geometry or checking detailing clearances.
What is the sectional area of RHS 80x25x3?
The source lists a sectional area of 5.71 cm2.
What is the unit weight?
The listed unit weight is 4.5 kg/m. This can support material takeoffs and preliminary weight checks, subject to project and fabrication requirements.
Which standard is referenced?
The profile reference points to EN 10219-2 for dimensions, tolerances, and sectional properties. The source also identifies EN 10219-1 for technical delivery conditions.
Is a CAD file available?
Yes. The page includes a DWG download for RHS 80x25x3. Review the file’s drafting setup before incorporating it into project documentation.
